Revert of Revert of Migrate accessibility from RenderView to RenderFrame.

content/renderer/render_frame_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 29 matching lines @@
 #include "content/public/common/content_switches.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/common/url_utils.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/public/renderer/context_menu_client.h"
 #include "content/public/renderer/document_state.h"
 #include "content/public/renderer/navigation_state.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/renderer/accessibility/renderer_accessibility.h"
+#include "content/renderer/accessibility/renderer_accessibility_complete.h"
+#include "content/renderer/accessibility/renderer_accessibility_focus_only.h"
 #include "content/renderer/browser_plugin/browser_plugin.h"
 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
 #include "content/renderer/child_frame_compositing_helper.h"
 #include "content/renderer/context_menu_params_builder.h"
 #include "content/renderer/devtools/devtools_agent.h"
 #include "content/renderer/dom_automation_controller.h"
 #include "content/renderer/geolocation_dispatcher.h"
 #include "content/renderer/history_controller.h"
 #include "content/renderer/history_serialization.h"
 #include "content/renderer/image_loading_helper.h"
@@ skipping 344 matching lines @@
 #endif
 #if defined(ENABLE_BROWSER_CDMS)
       cdm_manager_(NULL),
 #endif
 #if defined(VIDEO_HOLE)
       contains_media_player_(false),
 #endif
       geolocation_dispatcher_(NULL),
       push_messaging_dispatcher_(NULL),
       screen_orientation_dispatcher_(NULL),
+      accessibility_mode_(AccessibilityModeOff),
+      renderer_accessibility_(NULL),
       weak_factory_(this) {
   std::pair<RoutingIDFrameMap::iterator, bool> result =
       g_routing_id_frame_map.Get().insert(std::make_pair(routing_id_, this));
   CHECK(result.second) << "Inserting a duplicate item.";
 
   RenderThread::Get()->AddRoute(routing_id_, this);
 
   render_view_->RegisterRenderFrame(this);
 
 #if defined(OS_ANDROID)
@@ skipping 70 matching lines @@
   render_view_->set_pepper_last_mouse_event_target(instance);
 }
 
 void RenderFrameImpl::PepperTextInputTypeChanged(
     PepperPluginInstanceImpl* instance) {
   if (instance != render_view_->focused_pepper_plugin())
     return;
 
   GetRenderWidget()->UpdateTextInputState(
       RenderWidget::NO_SHOW_IME, RenderWidget::FROM_NON_IME);
-  if (render_view_->renderer_accessibility())
-    render_view_->renderer_accessibility()->FocusedNodeChanged(WebNode());
+  if (renderer_accessibility())
+    renderer_accessibility()->FocusedNodeChanged(WebNode());
 }
 
 void RenderFrameImpl::PepperCaretPositionChanged(
     PepperPluginInstanceImpl* instance) {
   if (instance != render_view_->focused_pepper_plugin())
     return;
   GetRenderWidget()->UpdateSelectionBounds();
 }
 
 void RenderFrameImpl::PepperCancelComposition(
@@ skipping 200 matching lines @@
     IPC_MESSAGE_HANDLER(FrameMsg_CSSInsertRequest, OnCSSInsertRequest)
     IPC_MESSAGE_HANDLER(FrameMsg_JavaScriptExecuteRequest,
                         OnJavaScriptExecuteRequest)
     IPC_MESSAGE_HANDLER(FrameMsg_SetEditableSelectionOffsets,
                         OnSetEditableSelectionOffsets)
     IPC_MESSAGE_HANDLER(FrameMsg_Reload, OnReload)
     IPC_MESSAGE_HANDLER(FrameMsg_TextSurroundingSelectionRequest,
                         OnTextSurroundingSelectionRequest)
     IPC_MESSAGE_HANDLER(FrameMsg_AddStyleSheetByURL,
                         OnAddStyleSheetByURL)
+    IPC_MESSAGE_HANDLER(FrameMsg_SetAccessibilityMode,
+                        OnSetAccessibilityMode)
 #if defined(OS_MACOSX)
     IPC_MESSAGE_HANDLER(InputMsg_CopyToFindPboard, OnCopyToFindPboard)
 #endif
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void RenderFrameImpl::OnNavigate(const FrameMsg_Navigate_Params& params) {
   MaybeHandleDebugURL(params.url);
@@ skipping 435 matching lines @@
   frame_->setCompositionFromExistingText(start, end, underlines);
 }
 
 void RenderFrameImpl::OnExtendSelectionAndDelete(int before, int after) {
   if (!GetRenderWidget()->ShouldHandleImeEvent())
     return;
   ImeEventGuard guard(GetRenderWidget());
   frame_->extendSelectionAndDelete(before, after);
 }
 
+void RenderFrameImpl::OnSetAccessibilityMode(AccessibilityMode new_mode) {
+  if (accessibility_mode_ == new_mode)
+    return;
+  accessibility_mode_ = new_mode;
+  if (renderer_accessibility_) {
+    delete renderer_accessibility_;
+    renderer_accessibility_ = NULL;
+  }
+  if (accessibility_mode_ == AccessibilityModeOff)
+    return;
+
+  if (accessibility_mode_ & AccessibilityModeFlagFullTree)
+    renderer_accessibility_ = new RendererAccessibilityComplete(this);
+#if !defined(OS_ANDROID)
+  else
+    renderer_accessibility_ = new RendererAccessibilityFocusOnly(this);
+#endif
+}
+
 void RenderFrameImpl::OnReload(bool ignore_cache) {
   frame_->reload(ignore_cache);
 }
 
 void RenderFrameImpl::OnTextSurroundingSelectionRequest(size_t max_length) {
   blink::WebSurroundingText surroundingText;
   surroundingText.initialize(frame_->selectionRange(), max_length);
 
   if (surroundingText.isNull()) {
     // |surroundingText| might not be correctly initialized, for example if
@@ skipping 1937 matching lines @@
 
 void RenderFrameImpl::didStopLoading() {
   render_view_->FrameDidStopLoading(frame_);
   Send(new FrameHostMsg_DidStopLoading(routing_id_));
 }
 
 void RenderFrameImpl::didChangeLoadProgress(double load_progress) {
   Send(new FrameHostMsg_DidChangeLoadProgress(routing_id_, load_progress));
 }
 
+void RenderFrameImpl::HandleWebAccessibilityEvent(
+    const blink::WebAXObject& obj, blink::WebAXEvent event) {
+  if (renderer_accessibility_)
+    renderer_accessibility_->HandleWebAccessibilityEvent(obj, event);
+}
+
+void RenderFrameImpl::FocusedNodeChanged(const WebNode& node) {
+  if (renderer_accessibility_)
+    renderer_accessibility_->FocusedNodeChanged(node);
+}
+
 WebNavigationPolicy RenderFrameImpl::DecidePolicyForNavigation(
     RenderFrame* render_frame,
     WebFrame* frame,
     WebDataSource::ExtraData* extraData,
     const WebURLRequest& request,
     WebNavigationType type,
     WebNavigationPolicy default_policy,
     bool is_redirect) {
 #ifdef OS_ANDROID
   // The handlenavigation API is deprecated and will be removed once
@@ skipping 419 matching lines @@
 
 #if defined(ENABLE_BROWSER_CDMS)
 RendererCdmManager* RenderFrameImpl::GetCdmManager() {
   if (!cdm_manager_)
     cdm_manager_ = new RendererCdmManager(this);
   return cdm_manager_;
 }
 #endif  // defined(ENABLE_BROWSER_CDMS)
 
 }  // namespace content